Numerical Simulation Research on the Interior Flow Field of Scroll Expander

In order to study the interior flow field characteristic,a two-dimensional model of the scroll expander has been developed.The dynamic mesh and a standard k-e turbulence model was used in the simulation.With the aid of the software Fluent 6.3,the unsteady flow field including the pressure and the velocity distribution in the working chamber were achieved.Results show that the distribution of the pressure and the velocity is asymmetric.These provide theoretical reference for further study of the working performance of the scroll expander.